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MRCOOL DIY 5th Gen 3-Zone 36,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (9K+9K+18K), (DIYM336HP)
Take control of your comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System—the easiest and most affordable way to enjoy powerful, energy-saving heating and cooling without hiring a pro.
Three Rooms, Perfect Comfort
Efficiently heat or cool three separate spaces (350 sq. ft., 350 sq. ft., and 750 sq. ft.) with independent temperature control in each room for truly personalized comfort.
Truly DIY-Friendly
Skip the costly installation fees—no HVAC license or special tools needed. If you can use basic hand tools, you can install this system yourself.
No-Hassle Setup
Pre-charged Quick-Connect® line sets eliminate refrigerant handling and vacuuming. Just connect the lines and you’re ready to enjoy comfort.
Year-Round Savings
With up to 23 SEER2 cooling efficiency and 9.9 HSPF2-4 heating performance, this system delivers impressive energy savings all year long.
Built for Every Season
Stay warm even in extreme cold—the system provides reliable heating down to -13°F.
Strong Warranty Protection
Includes a 7-Year Compressor Replacement Warranty and 5-Year Parts Coverage for added peace of mind.
From scorching summers to freezing winters, the MRCOOL DIY Mini Split keeps your home comfortable and your energy bills low. Smart. Simple. Affordable.
WHAT YOU GET:
- OUTDOOR UNIT (36K) x 1
MRCOOL DIY® 5th Gen 36,000 BTU 6-Zone Multi-Zone Mini Split Condenser 230V (DIY-MULTI5-36HP230D-O)
- INDOOR UNIT (9K) x 2
MRCOOL DIY® 5th Gen 9,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-09-HP-WMAH-230D25-O)
- INDOOR UNIT (18K) x 1
MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-18-HP-WMAH-230D25-O)
- REMOTE CONTROL x 3
- PRE-CHARGED LINE SETS x 3
NOTE: Need different line set lengths? Click here to add them as add-ons.
SPECIFICATIONS:
| SYSTEM OVERVIEW | |
|---|---|
| System Type | Ductless Mini Split Air Conditioner & Heat Pump |
| Zones | 3 |
| Capacity | Total: 36,000 BTU Zone 1: 9,000 BTU Zone 2: 9,000 BTU Zone 3: 18,000 BTU |
| Coverage Area | Total: 1,450 sq. ft. Zone 1: 350 sq. ft. Zone 2: 350 sq. ft. Zone 3: 750 sq. ft |
| Refrigerant | R-454B |
| Line Sets Included | 3 x Pre-Charged Line Sets |
| Warranty | 7 Years Compressor 5 Years Parts |
| OUTDOOR UNIT (36K) x 1 | |
| Model | DIY-MULTI5-36HP230D-O |
| Dimensions | 37.24" W x 16.14" D x 31.89" H |
| Cooling Capacity | 34,000 BTU |
| SEER2 | 23.0 |
| EER2 | 12.0 |
| Heating Capacity | 36,000 BTU |
| HSPF2-4 | 9.9 |
| HSPF2-5 | 7.5 |
| Outdoor Noise Level | 64.0 dB(A) |
| Outdoor Operating Temperature | Cooling: -13°F – 122°F Heating: -13°F – 75°F |
| Voltage | 208–230V |
| Phase | 1 |
| Cycle | 60Hz |
| Min Circuit Ampacity | 30.5A |
| Max Fuse Breaker | 35.0A |
| Weight | 169.75 lbs |
| Certifications | ENERGY STAR Certified AHRI Certified UL Listed ETL Listed |
| INDOOR UNIT (9K) x 2 | |
| Model | DIY-09-HP-WMAH-230D25-O |
| Dimensions | 31.57" W x 7.44" D x 11.69" H |
| Mounting Type | Wall |
| Cooling Capacity | 9,000 BTU |
| Heating Capacity | 9,000 BTU |
| Coverage Area | 151 to 350 sq. ft. |
| Liquid Line Size | 1/4" |
| Suction Line Size | 3/8" |
| Modes | Auto Mode: Automatically selects heating or cooling based on the room's temperature. Cool Mode: Lowers the room temperature to your desired setting. Heat Mode: Raises the room temperature to your desired setting. Fan-Only Mode: Circulates air without heating or cooling. Dry Mode (Dehumidification): Reduces humidity levels in the room. Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings. |
| Weight | 24.47 lbs |
| INDOOR UNIT (18K) x 1 | |
| Model | DIY-18-HP-WMAH-230D25-O |
| Dimensions | 42.52" W x 8.9" D x 13.19" H |
| Mounting Type | Wall |
| Cooling Capacity | 18,000 BTU |
| Heating Capacity | 18,000 BTU |
| Coverage Area | 501 to 750 sq. ft. |
| Liquid Line Size | 1/4" |
| Suction Line Size | 1/2" |
| Modes | Auto Mode: Automatically selects heating or cooling based on the room's temperature. Cool Mode: Lowers the room temperature to your desired setting. Heat Mode: Raises the room temperature to your desired setting. Fan-Only Mode: Circulates air without heating or cooling. Dry Mode (Dehumidification): Reduces humidity levels in the room. Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings. |
| Weight | 35.49 lbs |
GUIDE:
Installation Manual
MRCOOL 5th Gen Brochure
Energy Guide
ARHI Certificate
Remote Control Manual
Warranty
SHIPPING POLICY:
Free Curbside Delivery
MRCOOL orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.
Tracking & Delivery Scheduling
In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.
RETURN POLICY:
MRCOOL returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.
Restocking Fee
Please note, a 35% restocking fee will be applied to all approved returns.
Non-Returnable Items
Accessories including lineguards, wall mounts, linesets, couplers, and similar items are not eligible for return.